import random
import time

import pytest
import requests
import json
from unittest.mock import patch, MagicMock

# 配置信息
API_URL = "https://cvm.tencentcloudapi.com/"
REGION = "ap-guangzhou"
SECRET_ID = "your-secret-id"  # 实际测试中应从环境变量获取
SECRET_KEY = "your-secret-key"  # 实际测试中应从环境变量获取


def generate_signature(params, secret_key):
    """生成签名（模拟实现）"""
    return "mock-signature"  # 实际需按腾讯云规范实现


def send_request(action, params):
    """发送API请求（模拟实现）"""
    common_params = {
        "Action": action,
        "Version": "2017-03-12",
        "Region": REGION,
        "SecretId": SECRET_ID,
        "Timestamp": int(time.time()),
        "Nonce": random.randint(1, 1000000),
        "SignatureMethod": "HmacSHA256"
    }
    all_params = {**common_params, **params}
    all_params["Signature"] = generate_signature(all_params, SECRET_KEY)

    response = requests.post(API_URL, data=all_params)
    return response.json()


class TestModifyInstancePlacementGroup:
    @patch('requests.post')
    def test_modify_success(self, mock_post):
        """测试成功调整分散置放群组"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "RequestId": "1234567890",
                "TaskId": "task-123456"
            }
        }
        mock_post.return_value = mock_response

        params = {
            "InstanceId": "ins-valid-id",
            "PlacementGroupId": "pgroup-valid-id"
        }
        result = send_request("ModifyInstancesPlacementGroup", params)

        assert "Response" in result
        assert "TaskId" in result["Response"]

    # 账户相关错误码
    @patch('requests.post')
    def test_account_qualification_restrictions(self, mock_post):
        """测试账户未通过资格审计"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "AccountQualificationRestrictions",
                    "Message": "该请求账户未通过资格审计"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {"InstanceId": "ins-valid-id"})
        assert result["Response"]["Error"]["Code"] == "AccountQualificationRestrictions"

    @patch('requests.post')
    def test_unpaid_order(self, mock_post):
        """测试账户有未支付订单"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidAccount.UnpaidOrder",
                    "Message": "账户有未支付订单"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {"InstanceId": "ins-valid-id"})
        assert result["Response"]["Error"]["Code"] == "InvalidAccount.UnpaidOrder"

    # 实例相关错误码
    @patch('requests.post')
    def test_invalid_instance_not_supported(self, mock_post):
        """测试不支持的实例类型"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidInstance.NotSupported",
                    "Message": "不被支持的实例"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {"InstanceId": "ins-unsupported"})
        assert result["Response"]["Error"]["Code"] == "InvalidInstance.NotSupported"

    @patch('requests.post')
    def test_invalid_instance_id_format(self, mock_post):
        """测试无效实例ID格式"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidInstanceId.Malformed",
                    "Message": "无效实例ID格式"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {"InstanceId": "invalid-format"})
        assert result["Response"]["Error"]["Code"] == "InvalidInstanceId.Malformed"

    @patch('requests.post')
    def test_instance_not_found(self, mock_post):
        """测试实例不存在"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidInstanceId.NotFound",
                    "Message": "实例不存在"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {"InstanceId": "ins-not-found"})
        assert result["Response"]["Error"]["Code"] == "InvalidInstanceId.NotFound"

    # 参数相关错误码
    @patch('requests.post')
    def test_missing_instance_id(self, mock_post):
        """测试缺少实例ID参数"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "MissingParameter.InstanceId",
                    "Message": "缺少实例ID参数"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {})
        assert result["Response"]["Error"]["Code"] == "MissingParameter.InstanceId"

    @patch('requests.post')
    def test_missing_placement_group_id(self, mock_post):
        """测试缺少置放群组ID参数"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "MissingParameter.PlacementGroupId",
                    "Message": "缺少置放群组ID参数"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {"InstanceId": "ins-valid-id"})
        assert result["Response"]["Error"]["Code"] == "MissingParameter.PlacementGroupId"

    @patch('requests.post')
    def test_invalid_placement_group_id_format(self, mock_post):
        """测试无效置放群组ID格式"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidPlacementGroupId.Malformed",
                    "Message": "无效置放群组ID格式"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {
            "InstanceId": "ins-valid-id",
            "PlacementGroupId": "invalid-format"
        })
        assert result["Response"]["Error"]["Code"] == "InvalidPlacementGroupId.Malformed"

    @patch('requests.post')
    def test_placement_group_not_found(self, mock_post):
        """测试置放群组不存在"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidPlacementGroupId.NotFound",
                    "Message": "置放群组不存在"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {
            "InstanceId": "ins-valid-id",
            "PlacementGroupId": "pgroup-not-found"
        })
        assert result["Response"]["Error"]["Code"] == "InvalidPlacementGroupId.NotFound"

    @patch('requests.post')
    def test_placement_group_full(self, mock_post):
        """测试置放群组已满"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidPlacementGroup.Full",
                    "Message": "置放群组已满"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {
            "InstanceId": "ins-valid-id",
            "PlacementGroupId": "pgroup-full"
        })
        assert result["Response"]["Error"]["Code"] == "InvalidPlacementGroup.Full"

    # 操作限制相关错误码
    @patch('requests.post')
    def test_instance_invalid_state(self, mock_post):
        """测试实例状态不允许操作"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidInstanceState",
                    "Message": "实例状态不允许此操作"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {
            "InstanceId": "ins-invalid-state",
            "PlacementGroupId": "pgroup-valid-id"
        })
        assert result["Response"]["Error"]["Code"] == "InvalidInstanceState"

    @patch('requests.post')
    def test_operation_conflict(self, mock_post):
        """测试操作冲突"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "OperationConflict",
                    "Message": "操作冲突"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {
            "InstanceId": "ins-in-conflict",
            "PlacementGroupId": "pgroup-valid-id"
        })
        assert result["Response"]["Error"]["Code"] == "OperationConflict"

    @patch('requests.post')
    def test_placement_group_not_supported(self, mock_post):
        """测试置放群组类型不支持"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidPlacementGroup.NotSupported",
                    "Message": "置放群组类型不支持此操作"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {
            "InstanceId": "ins-valid-id",
            "PlacementGroupId": "pgroup-unsupported"
        })
        assert result["Response"]["Error"]["Code"] == "InvalidPlacementGroup.NotSupported"

    @patch('requests.post')
    def test_placement_group_cross_region(self, mock_post):
        """测试置放群组与实例不在同一区域"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidPlacementGroup.CrossRegion",
                    "Message": "置放群组与实例不在同一区域"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {
            "InstanceId": "ins-valid-id",
            "PlacementGroupId": "pgroup-cross-region"
        })
        assert result["Response"]["Error"]["Code"] == "InvalidPlacementGroup.CrossRegion"

    @patch('requests.post')
    def test_permission_denied(self, mock_post):
        """测试权限不足"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "AuthFailure.UnauthorizedOperation",
                    "Message": "权限不足"
                }
            }
        }
        mock_post.return_value = mock_response

        result = send_request("ModifyInstancesPlacementGroup", {
            "InstanceId": "ins-valid-id",
            "PlacementGroupId": "pgroup-valid-id"
        })
        assert result["Response"]["Error"]["Code"] == "AuthFailure.UnauthorizedOperation"


# 启动测试函数
def run_tests():
    pytest.main([__file__, "-v", "-s"])


if __name__ == "__main__":
    run_tests()